What is a key weakness of Wundt's work regarding self-report techniques?

Wundt's work is foundational in psychology, especially regarding introspection and self-report techniques, which require individuals to reflect on and report their thoughts and feelings. A key weakness of these methods is that they can yield subjective results. Since introspection relies on an individual’s personal experiences and perceptions, the data collected can be heavily influenced by personal bias and individual differences. As such, the findings can vary significantly from one person to another, making it difficult to generalize results across different individuals.

The subjective nature of self-reports means that they are contingent on personal interpretation, leading to variability and reducing the reliability of the data collected. This issue raises questions about the validity of conclusions derived from such self-reported data, especially in more empirical, science-driven fields.

In contrast, aspects such as the objective nature or reliance on scientific methods are not weaknesses. In fact, these are strengths that contribute positively to the study of psychology, emphasizing the rigor of experimental design and empirical validation. Additionally, the criticism regarding a lack of empirical evidence does not apply inherently to Wundt's work since he was among the first to apply scientific principles to psychology, but rather reflects limitations within the methodological approaches he used, such as introspection.